Chocolate Cake with Nutella and Strawberries

Line the bottom of two 25-26 cm diameter cake pans with baking paper, and grease their sides with butter and sprinkle with cocoa powder.

Sift together the flour with the cocoa powder, baking soda, baking powder, and salt.

Cream the butter with the sugar, then add the eggs one by one. Finally, while continuously mixing, alternately add the sour cream and the dry ingredients. Divide the resulting thick batter into two, and spread evenly in the prepared pans. Bake in a preheated oven at 180°C for 30 minutes. After baking, let them cool in the pans, then remove the cake layers.